yea man just buy a single fan controller, just with fan controllers, with nothing else on it. The only thing that sucks is that most of them have blue led's and well if your not to happy with blue like me cause its to overrated you will have some problems finding one without blue. For instance red is me, red leds and black. If you want that rheobus that atomic posted:
and you want the colors changed, go to www.performance-pcs.com
and search that product up and they give you and option to change the colors.
the stock led colors are blue to red i believe but you can get the blue changed if you like, for instance i would take white/red. Most other sites dont have that option and not all of the fan controllers on that site have that option, most dont